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`lHE DlE‘SIGN MAGAZINE OF THE ELECTRONICS INDUSTRY
`V “9—. I.
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`‘ 57'7"
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`MARCH 2, 1998
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`www.ednmag.com
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`IC changes course of USB
`
`enumerationpmcedurepg“
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`Table of Contents
`
`pg 4
`
`pg 11
`Leading Edge
`
`Howard Johnson PhD
`EMl-simulation tools
`
`pg 24
`
`Microprocessor, DSP
`technologies unite for
`embedded applications
`pg 73
`
`Frame grabbers get the
`picture when video
`cameras fall short
`
`pg 87
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`Design Ideas
`
`pg 99
`
`Interfacing HDLs with
`conventional program-
`ming languages
`pg 117
`DSP IC's clock oscillator
`
`uses inexpensive
`crystals
`
`Designing with
`op amps
`Components
`Showcase
`
`pg 127
`
`pg 135
`
`pg 143
`
`DILBERT®
`
`pg 12
`
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`********** MIXE
`**
`0026# (9805
`11081 /20
`lSIN
`OF H SCOF
`F NE DT
`NRAN AL
`LLIBR——ENGR
`HI
`53706
`SN
`Oz
`
`l 1.. u l...lll....l|..l.l..l
`LG EICCS- V- Cypress Semiconductor
`'
`'
`'
`IPR2014-01405, US. Pat. 6,493,770
`Exhibit 2060 - F%01 of 6‘“
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`7
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` DNSK
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`EXHIBIT 2060
`
`
`*5IND
`
`Exhibit 2060 - Page 01 of 03
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`

`

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`Sealevel ISA and PCI COM: Ports
`Introducing the Ultra“ and COMM+TM series
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`All trademarks are the sole property of their respective owners.
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`VERSA COMM+4IEX
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`CIRCLE NO. 4
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`LS. RESEARCH, INC.
`HIGH TECHNOLOGY ELECTRONIC CONSULTANTS
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`\/ LS. COMPLIANCE, INC.
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`COMPREHENSIVE EMC TESHNG AND CONSULTAHON
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`414—375-4400
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`CALL
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`IRCLE NO. 5
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`32 - EDN MARCH 2, 1998
`
`Exhibit 2060 - Page 02 o 03
`
`Exhibit 2060 - Page 02 of 03
`
`

`

`
`This material may be protected by Copyright law (Title 17 U.S. Code)
`
`:1 IC changes course of USB enumeration procedure
`
`EDITED BY FHA" GRANVILLE
`
`
`
`
`_.
`
`The EZ-USB family of ICs from Anchor Chips
`integrates a high-performance microcon-
`troller, includes hardware support for low-
`level USB signaling, and takes a new tack to
`maximize flexibility in the USB enumeration
`procedure. These features differentiate
`Anchor’s le from most other USB ICs and provide a single-
`1 chip USB implementation that can serve in applications
`.'- ranging from cost-sensitive peripherals, such as pointing
`2' devices, to high-end devices, such as scanners.
`The IC incorporates an 8051-compatible core with support
`from a legion of software-development tools from multiple
`a vendors. Moreover, the core offers a fivefold boost in perform-
`ance over off-the-shelf 8051 le. In addition, although most
`, manufacturers minimize prices by using the rnicrocontroller
`to handle low-level signal handshakes, the EZ-USB ICs
`include state machines that offload these task from the micro-
`'-= controller. The hardware signaling leaves the microcontroller
`‘ free to handle more peripheral functions and, therefore,
`" allows designers to use the IC in more complex devices.
`_-
`The ICs also use an enumeration scheme to maximize
`'
`flexibility in peripherals via downloadable control firmware.
`.f The USB standard specifies that a peripheral must go
`I
`through an enumeration procedure whenever the peripher-
`I a1 connects to the bus. During this procedure, the host
`‘ assigns the peripheral a unique ID, and the peripheral pro-
`. Vides the host with device descriptors that indicate the
`; peripheral’s capabilities.
`;
`In contrast, the EZ—USB le go through this enumeration
`l procedure and establish a baseline configuration. The ICs
`‘
`then download new firmware from the host, simulate a dis-
`connect/reconnect cycle, and repeat the enumeration, pro-
`viding updated descriptors to the host. This software-based
`r configuration scheme offers several advantages. For exam-
`ple, it simplifies software updates to peripherals, a feature
`that can be important in a new interface, such as USB. The
`
`5
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`
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`The EZ-USB family of le integrates an 8051 microcontroller
`with a USB interface that's handles all USB signaling. The IC
`supports postage-stamp-sized designs.
`
`software-based configuration also enables you to develop
`multifunction peripherals. A DSP-based peripheral could
`take on the role of a modem during one session, for exam-
`ple, and an audio synthesizer during another session.
`The company offers three versions of the EZ-USB. The
`AN2131S integrates 8 kbytes of RAM and 16 1/0 lines and
`costs $6.36 (10,000). The AN2131Q adds eight more 1/0
`lines and costs $7.31 (10,000), and the AN2141Q increases
`memory to 16 kbytes of RAM for $8. 72 (10,000). Anchor also
`offers an EZ-USB Xcelerator development kit for $495. The
`kit includes a development board, an 8051 compiler, a gen-
`eral-purpose USB device driver, and sample firmware and dri-
`ver code—by Maury Wright
`Anchor Chips, San Diego, CA. 1-619-613-7900, WWW.
`anchorchipscom.
`Circle No. 520
`
`I Firewire VXI slot-zero
`g, controller IS first, fast,
`A and low-cost
`l Hewlett-Packard’s C-size E8491A slot-
`f ZEIO controller and host-computer
`‘ interface may be the first IEEE 1394
`; (Firewire) test—and-measurement hard-
`
`ware. The device transfers data bursts at
`
`400 Mbps (50 Mbytes/sec). This speed
`accommodates the VXI bus’ 40-
`
`Mbyte/sec transfer rate. Although
`observers call Firewire fast and elegant
`but costly, the E8491A costs only
`$2500. HP claims that the E8491A
`
`makes the cost of Firewire only $300
`higher than that of products employ-
`
`ing IEEE 488, whose transfer rate is less
`than 2% that of Firewire’s. Compared
`with the MXI bus, which has become
`the standard for linking VXI cages to
`external host PCs, Firewire is both less
`expensive (the savings over HP’s MXI
`interface can exceed $3500) and faster
`(50 vs 32 Mbytes/sec).
`Cabling is another advantage of the
`
`Wwvmednmag. com
`Exhibit 2060 - Page 03 of 03
`
`
`EDN MARCH 2, 1998 ' 11
`
`Exhibit 2060 - Page 03 of 03
`
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